Py3 logging improvements

[VakarisZ]

Fixes

• Fixed mssql uncaught error
• Removed BB error.

Note:
With the latest changes we can improve exploiter code in following way:
Before:

def exploit_host(host):
    result = brute_force(host)
    if not result:
        return False

def brute_force(host):
    try:
         try_brute_force(host)
    except Exception:
         Log.debug("Brute force failed)
         return False

Now:

def exploit_host(host):
    result = brute_force(host)

def brute_force(host):
    try:
         try_brute_force(host)
    except Exception:
         raise FailedExploitationError("Brute force failed)

Note that FailedExploitationError allows us to remove if not some_func(): return False statements and makes code cleaner.